Ram knife



FIG. 1 is a top plan view of a ram knife showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left end view thereof; and

FIG. 5 is a right end view thereof.

The side elevational view not shown is similar to the one shown.

The ornamental design for a ram knife, as shown and described.